The addiction started on Facebook in 2012, and soon after, Candy Crush Saga was available on iOS, Android, Windows Phones, and Windows 10. Levels are completed by swiping three or more matching-color candies together to crush them. Each board has certain objectives, and all boards give you a limited number of moves. Candy Crush was the most-played game on Facebook in 2013 and remains in the top-ten grossing mobile apps. As of this publication, there are 3320 levels (15 levels per world on average), with new worlds being added every week!